Question: What was Louis the Pious' noble title and who follows?
Paraphrase: What is the type of quantum particle with the very best gyromagnetic ratio whose occasion of is isotope of neutronium ?
SPARQL (Wikidata): SELECT ?value1 ?obj WHERE { wd:Q43974 p:P97 ?s . ?s ps:P97 ?obj . ?s pq:P155 ?value1 . }